Measuring the level of solids and powders of bulk volume in any vessel can be comparatively a bit challenging than that of liquids. Level of solids is unpredictable as they accumulate in uneven shapes in storage silos and hence difficult to measure.
In this article, we shall discuss some key factors that you should take into consideration before you decide measuring level of solids.
Types of level measurement /monitoring
The process application decides the type of instrument required and its function. There are two types of major level measurement or monitoring gears that can be used to measure levels in solids depending on the kind process applied in the industry:
The detection and control of the level can be very well be achieved with the help of different types of switches. . Switches are versatile, reliable, and robust in their function. The easy-to-install switches come in various sizes and make.
Transmitters on the other hand are useful for the continuous monitoring of the level in the silos. The process application and functional requirement you choose, decide the type of instrument required. There are range of transmitters that offer high temperature and pressure operations suitable for remote programming as well.
Nature of solids
Identifying the nature of solids is crucial as it will help in selecting the appropriate type of equipment for measuring the level. The nature of solids can be either free-flowing or they can be hygroscopic. The shifting nature of uneven surfaces in solids makes it difficult to make assumptions. The surface levels of solids, unlike liquids, are not the same throughout the vessel.
Free-flowing solids such as cement, limestone, and other powders need conducive measuring equipment.
Hygroscopic solids are prone to absorbing moisture and lump formation. Hence, opting for a suitable instrument to measure their level is also vital.
Properties of solid
Another factor to look for while choosing the equipment for measuring the levels in solids is studying the physical properties of the solid. Examine the particle size, bulk density as well as the dielectric constant of the solid.
Particle Size: This can range from fine powder to coarse materials. The space between the particles determine the extent of lump formation.
Bulk Density (BD) and Dielectric Constant (DC): Many solids have low BD and DC values. These factors to be looked out for, if you opt for level measurement with the radar technology.
Knowing the properties of the solids will assist in selection of appropriate instrument which would perform with the required accuracy and precision. If the equipment zeroed down is a perfect fit, then you can avoid breakdowns or errors in the results.
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Pune Techtrol Pvt.Ltd
S-18, MIDC Bhosari,
Pune - 411026,India
Phone No- 020 66342900
Email Id- ho@punetechtrol.com
Website- http://www.punetechtrol.com
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